Aragon Open Data Portal, member of the HOMER project federation, has been awarded as the best public open data initiative with involvement of society in Open Knowledge Foundation Spain Awards celebrated last February 21th in Madrid, coinciding with the celebration of the World Day of Open Knowledge. It is an award to recognise biggest contributions in Open Knowledge, Open Data and Transparency. The judges felt that Aragon Open Data Portal reflects innovation and high level of transparency to serve the users and the extensive use of open data with an intuitive, dynamic and engaging interfaz.